Default Vendor becomes unselected when adding UOM

​@kyle90 TThis behavior appears to be unusual. It may be worth creating a support case with Acumatica. Based on my understanding, this could be occurring because the same vendor is being used multiple times with different UOMs. Please check with Acumatica support to confirm whether this is the expected native behavior or an issue that needs to be addressed.

Hi ​@kyle90 ,

Please review the following steps, which may help address the issue.

1. Ensure that the Multiple Units of Measure feature is enabled in Acumatica.
2. Navigate to the Stock Items (IN202500) form.
3. In the Units of Measure section, specify the additional UOM you wish to add.
4. Define conversion rules between the current and new UOM to ensure accurate quantity calculations.
5. This process allows you to add a second UOM without removing default vendors.

Hope this helps.

Thank You,

Kasuni Edirisinghe

Please review the following steps, which may help address the issue.

1. Ensure that the Multiple Units of Measure feature is enabled in Acumatica.
2. Navigate to the Stock Items (IN202500) form.
3. In the Units of Measure section, specify the additional UOM you wish to add.
4. Define conversion rules between the current and new UOM to ensure accurate quantity calculations.
5. This process allows you to add a second UOM without removing default vendors.

Multiple Units of Measure has been enabled from day 1 and is used regularly across two active tenants - the issue isn’t how to add a 2nd UOM, the issue arises when assigning an alternate UOM from the default vendor

When we assign a secondary non-default vendor with a different UOM the issue does not happen. The issues only happens when you add a 2nd UOM using the currently defaulted UOM

​@KasuniEdirisinghe58 - I would suggest you attempt the follow steps to determine if this is isolated to our instance (2025 R1)

1. Navigate to the Stock Items (IN202500) form and select an item with an existing Default Vendor
2. In the Units of Measure section, specify the additional UOM you wish to add
3. Define conversion rules between the current and new UOM to ensure accurate quantity calculations.
4. On the Vendors tab, add a 2nd row using the + button, then add the following details in this order
   1. Use the same Vendor ID as the existing default vendor
   2. Select the new UOM as the Purchase Unit
   3. Assign a new & unique Vendor Inventory ID
5. Click Save (Ctrl+S) & note the default vendor check box status on the Vendors tab
6. Click Cancel (Esc) & note the default vendor check box status on the Vendors tab

In our instance, at step 5 only the original UOM will have the default vendor checkbox checked.

At step 6 neither row has the default checkbox selected

The default vendor becomes unselected when adding a second UOM

Thank you ​@ShoKetchum56 - that’s a great summary of what’s going on and very thorough review of the problem! I really appreciate you taking the time to dig in on this 

And while you might be right that this is the “current expected behavior of Acumatica” - I can’t imagine how this helps anyone or improves user experience in any real-world scenario. 

I added comments to  Selecting the correct UOM for a specific vendor on a Purchase Order | Community about a year ago, and it looks like this hasn’t moved forward. I see a lot of simple fixes and updates to distribution go unaddressed - it feels like the new stuff always gets prioritized over polishing the existing features, which is sad. You can see other’s comment on that post as “eagerly awaited” and “really important for all customers” but it’s not been picked up by anyone at Acumatica

I would love an opportunity to make a case for why this and a bunch of small related improvements to Vendor/Inventory would be worth a look

Thanks again