A different planning version is being used

What causes this issue?

You have tried to call up data in the planning version. This was not
possible, however, as a different planning version has been used in the
same call.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

If you make more than one call, check if a planning version was set or
used in the previous calls, that differs from the currently transferred
planning version.

Error message extract from SAP system. Copyright SAP SE.