SUM_NO_ASSIGNING SAP ABAP Runtime Error sum no assigning

SUM_NO_ASSIGNING is an ABAP runtime error which you may come across when using or developing within an SAP system. See below for the standard details explaining what it means and how you can avoid or fix this runtime error.

Short Dump Classification: A - ABAP Programming Error

You can view further information about a runtme error by using transaction code ST22 which will show you this and all runtime erros that have happen in your SAP system.

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SUM_NO_ASSIGNING ABAP Runtime Error

Please see program correction for more details about the possible cause of this runtime error and how it could be avoided.

The SUM statement cannot be executed in this context. Please see abap error for more details about the possible cause of this runtime error and how it could be avoided.

The SUM statement can be used in group level processing within a LOOP on an internal table only if a work area for summation is available. Within LOOP ... ASSIGNING this is not the case, because the LOOP field symbol operates directly on the table. Please see abap error for more details about the possible cause of this runtime error and how it could be avoided.

The SUM statement has been used inside LOOP ASSIGNING. This is illegal.