We have received a request from the client to increase character limit of the vendor batch number consists of 17 characters, while the standard SAP field currently supports only 15 characters. how to do it, is it possible to do so?
Theoretically, you could change the LICHN domain and extend its length. However, it is very risky as it leads to a torrent of dependent object activations. I'd strongly advise against it.
Instead store long vendor batch numbers in batch classification data - SAP Help Batch Specifications
You can use either the LOBM_PROC_GM_CHARC_VAL_MODIF BAdI or the MBCFC004 user-exit to classify batches during goods movements - get a vendor batch number and put it into batch classification data.
Bluesky
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