Multiple vendor code as GST registration, accounting done in wrong vendor code

pankaj khator (AGM -Finance) (21 Points)

29 July 2018  
A company having business in multiple states with requisite GST numbers.

Company's vendors also having multiple state GST registration.

Company maintains saperate vendor codes based on GST numbers.

While accounting, some eligible credits were accounted in wrong vendor code.

Please calrify:
1. Whether credit still eligible?
2. Can returns may rectify now?
3. What are the possible implications?

Regards
Pankaj