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Issue with the Mexican electronic invoicing (CFDI Payment Complement) - EquivalenciaDR field

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Posted on by CU24050247-0

Hi everyone,

I’m working with Business Central (NA) version 26.4 (Mexico localization) and I’ve found an issue with the Mexican electronic invoicing (CFDI Payment Complement). EquivalenciaDR field in the Payment Complement CFDI. The scenario is: two invoices in USD and a payment also in USD. Since the payment currency and the invoice currency are the same, SAT (Mexican Tax Authority) requires EquivalenciaDR = 1 (without decimals).
The problem is that when only one invoice is included, Business Central correctly sets EquivalenciaDR = 1. But when there are two or more invoices in the same currency, the system generates EquivalenciaDR = 1.0000000000. This value is rejected by the PAC/SAT, because they require the attribute to be declared as “1” (no decimals) whenever the currencies match.

After reviewing the code, it looks like there is a restriction where the value “1” is only applied if there is a single related invoice, while for multiple invoices the system forces the decimal value. This behavior is not compliant with SAT rules.
Is this a known issue that Microsoft plans to fix in a future CU? Has anyone else experienced this and found a workaround?

Thanks in advance for your help!

JAA

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Dynamics 365 Business Central

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Andrés Arias 5,166 Super User 2026 Season 1 on at

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Hello,

Do you have a Mexican localization extension? Or are you using the standard one?

I hope I can help.

Best regards,

Andrés

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Suresh Kulla 50,269 Super User 2026 Season 1 on at

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I don't think this is standard BC; it looks like you have a customization or extension to support this. Can you please confirm

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Nimsara Jayathilaka. 4,950 Super User 2026 Season 1 on at

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Hi

In Business Central NA v26.4 (Mexico localization), the EquivalenciaDR field in the CFDI Payment Complement behaves incorrectly when multiple invoices in the same currency are paid. For a single invoice, EquivalenciaDR = 1 (correct), but for multiple invoices, it becomes 1.0000000000, which SAT rejects. The system currently only applies the integer “1” for single invoices, not multiple, causing non-compliance.

Thanks

Nimsara

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YUN ZHU 99,090 Super User 2026 Season 1 on at

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Hi, Regarding localization issues, I suggest you post them in the BC Yammer Group below. Microsoft technicians will be able to give you a better response when they see them.

Viva Engage : Dynamics 365 Business Central Partner Community (Formerly: Development) : Localization & Legislation : New Conversations

Hope this helps.

Thanks.

ZHU

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