Date: 11/12/2024
Status: Under investigation
Reference: CE00054143
Issue
(SO301000) Unable to cancel or delete Sales Order. Error : IN Error: Updating item xx in warehouse xx quantity available for shipment will go negative. This is occurring because the Sales Order is associated with a Blanket Order which it shouldn't be
Workaround
Note the workaround below may vary slightly site to site. Please contact MYOB Support if you need help executing this on your site
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Go to SO201000 screen
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Select SA order type
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Clear Require Stock Allocation checkbox on Template tab
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Save
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Go to IN201000 screen
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Select OTM Class ID
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Select Allow Negative Quantity checkbox
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Save
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Delete or Cancel problematative Sales order
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Revert changes for Require Stock Allocation and Allow Negative Quantity. SA Require Stock Allocation checkbox should be selected, OTM Allow Negative Quantity checkbox should be cleared