Batch determination/check: you have not entered a unit of measure

What causes this issue?

You have entered a material quantity for process instruction &V2&
assigned to phase &V1& of the process order. However, the unit of
measure has neither been entered in the PI sheet nor in the process
order.

System Response

The system uses the base unit of measure maintained in the material
master to carry out batch determination or batch check for this process
instruction.

How to fix this error?

INCLUDE 'NA_HA_TST' OBJECT DOKU ID TX LANGUAGE EN
RESET N1
If you want to use a different unit of measure, add the characteristic
for the unit of measure (PPPI_UNIT_OF_MEASURE) in process instruction
&V2& assigned to phase &V1& of the process order.
Create a new control recipe and maintain the PI sheet for it.
<DS:TRAN.COR2>Change process order </>
INCLUDE 'NA_HA_PROD' OBJECT DOKU ID TX LANGUAGE EN
You cannot correct the process instruction for the current PI sheet.
You must use the base unit of measure.
INCLUDE 'NA_PLNREZ_HINW' OBJECT DOKU ID TX LANGUAGE EN
<DS:TRAN.C202>Change master recipe</>

Error message extract from SAP system. Copyright SAP SE.