Posting string for scenario was not found

What causes this issue?

There is no entry in table T156S (movement type, quantity/value
posting) for the simulation scenario defined.
Accessing of table T156S is carried out in the first instance via the
movement type &V1& with the indicators for special stock, movement,
receipt and consumption (&V2&) that define it more precisely. On the
other hand, accessing also depends on the quantity and value update
indicators that are stored in table T134W (quantity/value control) for
the combination plant &V3&/material type &B4& and are displayed on the
simulation screen.

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 have no difficulty in carrying out simulations for movement type
&V1& with other plant/material combinations, please check the
<DS:TRANS.OMS2>quantity/value control</> for plant &V3&/material type
&V4&.

Error message extract from SAP system. Copyright SAP SE.