Hi,<div>while exploring erp5_trade functions i get error while changing simulation state of Sale packing list.</div><div>error: <span style="color:rgb(255,68,0);font-family:Arial,Helvetica,sans-serif;font-size:12px;font-weight:bold;background-color:rgb(218,230,246)">Arity Error for Relation ['causality'], arity is equal to 2 but should be between 0 and 1</span></div>
<div><div>Why am i gettting this error, and how can i solve this problem?</div><div><br></div>-- <br>Pavel Lstiburek<br>
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