@Jerin Joy Mandatory rules cannot be disabled as they are triggered after anomaly score has been reached. However, here are few things that you can do-
Create Exclusions in order to "bypass" the rule itself -->Web application firewall request size limits and exclusion lists in Azure Application Gateway - Azure portal | Microsoft Learn
Create custom rules --> https://learn.microsoft.com/en-us/azure/web-application-firewall/ag/custom-waf-rules-overview
Custom rules will have higher priority over OWASP rules, so they will be processed first.
Disable/untick specific rules/ details --> CRS rule groups and rules - Azure Web Application Firewall | Microsoft Learn
Hope this helps. Please let us know if you still have further questions/concerns and we will be glad to assist further. Thank you!
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