Using calendars in Microsoft Dynamics AX for purchasing

You might call this an orphan topic for companies managing purchasing schedules with Microsoft Dynamics AX 2012 and Dynamics 365 for Operations (AX7), but it is nonetheless quite important. Miscalculating delivery dates on your purchases always is, particularly in make-to-order and just-in-time manufacturing and distribution.

Some unexpected behavior exists in Dynamics AX with calendars and purchase orders, which I discovered this at a recent engagement with a distributor.

When working with resource groups and resources in Dynamics AX, the calendar is a mandatory field. But in purchasing where calendars certainly have an impact, they don't seem to be mandatory anywhere.

It is time to find out how calendars work when working with (planned) purchase orders.


Requires FREE Membership to View

Become a Member Joining gives you free, unlimited access to news, analysis, white papers, case studies, product brochures, and more, and it’s all FREE. You’ll also receive periodic email newsletters with the latest relevant articles and content updates.
About Evert Bos

I am Evert J Bos, ERP consultant since 1986. I started in Europe with IMS7 (A Honeywell Bull Mainframe ERP system) and the BaaN ERP system. Since 1995 I have worked in the USA and since 2004 I have been working with Dynamics AX.  I work for Sikich and focus mostly on manufacturing companies that make complex, engineered products.

Read full bio...

Calendars for Resources

Hi Evert,

Great article as always :) Your contributions are really valuable for any production and distribution functional consultant out there.

Technically speaking calendar is not a mandatory field on neither resource nor resource group. But that is, of course, will make them unusable during job scheduling of production orders (with finite capacity option either on or off). I would compare this situation to assigning resource group to a resource: the assignment is not required when resource is created but the system would not be able to find a resource when operation or job scheduling is executed.

Oleksiy Khoroshylov

Thanks for comment

Oleksiy!! Олексий .. большое спасибо за комментарию .
Откуда вы? Кийв? Харков?

Привет Еверт

Я родился в городе Львов на Украине. А Вы откуда?


Я был в Львове 2 года назад. Очень понравился город. Я голландский. У меня от молодости сильная тяга к славианским културам.
Я часто бываю в Польше, в Украине и в России.


Очень интересно :) У Вас есть клиенты в Польше, Украине или России? Или Вы ездите туда отдыхать?