how to convert SharePoint Permission Mask 0x00000005 to the name of the permission

Question

I have this error:

OriginalPermissionMask check failed. asking for 0x00000005, have 0xB008431061

How to find out the name of the permission to assign to the user

Answer 1

Hi @Irek Singer,

Thank you for posting in this community.

To convert a SharePoint Permission Mask to the name of the permission, you can use the following steps:

Convert the hexadecimal permission mask to binary. For example, 0x00000005 in binary is 00000101.

Starting from the rightmost bit, match each bit to the corresponding permission level in the following table:

BitPermission Level0EmptyMask1ViewListItems2AddListItems3EditListItemsFor each bit that is set to 1, add the corresponding permission level to a list of permissions.

Return the list of permissions.

For example, for the permission mask 0x00000005, the binary representation is 00000101. The bits that are set to 1 correspond to the ViewListItems and EditListItems permission levels, so the name of the permission is "ViewListItems, EditListItems".

Reference:

2.2.2.10 WSS Rights Mask

Implementing Custom Security Rights in SharePoint

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