Initialize and increment variable are not working as expected in logic app.

Question

I have an array of strings and I want to divide it into 4 arrays. To do so I am initializing a counter and 4 arrays and adding elements in each array based on the counter once counter reaches 4 I am resetting it to 0. I am using below code. I have observed that initialize counter is not initializing the counter to 0 and increment counter also does not seem to be incrementing by 1 but some random value.

            "foreachstring": {
                "actions": {
                    "Condition": {
                        "actions": {
                            "ResetCounter": {
                                "inputs": {
                                    "name": "ccidcounter",
                                    "value": 0
                                },
                                "type": "SetVariable"
                            }
                        },
                        "else": {
                            "actions": {
                                "IncrementCCIDCounter": {
                                    "inputs": {
                                        "name": "ccidcounter",
                                        "value": 1
                                    },
                                    "type": "IncrementVariable"
                                }
                            }
                        },
                        "expression": {
                            "and": [
                                {
                                    "equals": [
                                        "@variables('ccidcounter')",
                                        4
                                    ]
                                }
                            ]
                        },
                        "runAfter": {
                            "SwitchOnCounter": [
                                "SUCCEEDED"
                            ]
                        },
                        "type": "If"
                    },
                    "SwitchOnCounter": {
                        "cases": {
                            "Case_0": {
                                "actions": {
                                    "AppendToArr1": {
                                        "inputs": {
                                            "name": "arr1",
                                            "value": "@items('foreachstring')"
                                        },
                                        "type": "AppendToArrayVariable"
                                    }
                                },
                                "case": 0
                            },
                            "Case_1": {
                                "actions": {
                                    "AppendToArr2": {
                                        "inputs": {
                                            "name": "arr2",
                                            "value": "@items('foreachstring')"
                                        },
                                        "type": "AppendToArrayVariable"
                                    }
                                },
                                "case": 1
                            },
                            "Case_2": {
                                "actions": {
                                    "AppendToArr3": {
                                        "inputs": {
                                            "name": "arr3",
                                            "value": "@items('foreachstring')"
                                        },
                                        "type": "AppendToArrayVariable"
                                    }
                                },
                                "case": 2
                            },
                            "Case_3": {
                                "actions": {
                                    "AppendToArr4": {
                                        "inputs": {
                                            "name": "arr4",
                                            "value": "@items('foreachstring')"
                                        },
                                        "type": "AppendToArrayVariable"
                                    }
                                },
                                "case": 3
                            }
                        },
                        "default": {
                            "actions": {}
                        },
                        "expression": "@variables('ccidcounter')",
                        "type": "Switch"
                    }
                },
                "foreach": "@body('ParseJSONFromCosmosQuery')?['value']",
                "runAfter": {
                    "initialize_counter": [
                        "SUCCEEDED"
                    ]
                },
                "type": "Foreach"
            },
            "initialize_arr1": {
                "inputs": {
                    "variables": [
                        {
                            "name": "arr1",
                            "type": "array",
                            "value": []
                        }
                    ]
                },
                "runAfter": {
                    "ParseJSONFromCosmosQuery": [
                        "SUCCEEDED"
                    ]
                },
                "type": "InitializeVariable"
            },
            "initialize_arr2": {
                "inputs": {
                    "variables": [
                        {
                            "name": "arr2",
                            "type": "array",
                            "value": []
                        }
                    ]
                },
                "runAfter": {
                    "initialize_arr1": [
                        "SUCCEEDED"
                    ]
                },
                "type": "InitializeVariable"
            },
            "initialize_arr3": {
                "inputs": {
                    "variables": [
                        {
                            "name": "arr3",
                            "type": "array",
                            "value": []
                        }
                    ]
                },
                "runAfter": {
                    "initialize_arr2": [
                        "SUCCEEDED"
                    ]
                },
                "type": "InitializeVariable"
            },
            "initialize_arr4": {
                "inputs": {
                    "variables": [
                        {
                            "name": "arr4",
                            "type": "array",
                            "value": []
                        }
                    ]
                },
                "runAfter": {
                    "initialize_arr3": [
                        "SUCCEEDED"
                    ]
                },
                "type": "InitializeVariable"
            },
            "initialize_counter": {
                "inputs": {
                    "variables": [
                        {
                            "name": "ccidcounter",
                            "type": "integer",
                            "value": 0
                        }
                    ]
                },
                "runAfter": {
                    "initialize_arr4": [
                        "SUCCEEDED"
                    ]
                },
                "type": "InitializeVariable"
            }

Answer 1

@Shreya Gupta Thanks for reaching out.

It looks like you are updating the counter inside the for each loop.

Can you please make sure that you are running your for each loop in sequential. By default, it runs parallel and you can set the Degree of Parallelism slider to 1 as documented here in your for each loop and see if it helps you to get the expected output.

If not, can you please share your workflow screenshot, so it is easier to understand what are the different action and which action is inside and outside the loop.