[17.0][UPD] record_type obligatory po_type plus code trimming

[VoicuStefan2001]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 28.57143% with 5 lines in your changes missing coverage. Please review.

Project coverage is 68.08%. Comparing base (562b389) to head (7348ddf).
Report is 4 commits behind head on 17.0.

Files with missing lines	Patch %	Lines
deltatech_record_type/models/purchase.py	28.57%	5 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             17.0    #1895      +/-   ##
==========================================
- Coverage   68.10%   68.08%   -0.02%     
==========================================
  Files        1059     1059              
  Lines       17811    17817       +6     
  Branches     2555     2558       +3     
==========================================
+ Hits        12130    12131       +1     
- Misses       4995     5000       +5     
  Partials      686      686              

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