How To Fix WTADDI438 - You have selected &1 materials; the upper limit is &2

SAP Error Message - Details

• Message type: E = Error

• Message class: WTADDI - Additionals: Messages

• Message number: 438

• Message text: You have selected &1 materials; the upper limit is &2

What causes this issue?

You have limited the maximum number of materials that can be processed
to &V2& to ensure that the time required to generate the IDoc remains
within acceptable limits.

How to fix this error?

Reduce your material selection such that you no longer exceed the limit
you have set.
&HINTS&
You can call several sessions of the transaction for generating an
additionals IDoc and then start the transaction in parallel. You can
also simplify the transaction, by using variants, for example.

Error message extract from SAP system. Copyright SAP SE.