> For the complete documentation index, see [llms.txt](https://docs.truecaller.com/truecaller-for-business/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.truecaller.com/truecaller-for-business/verified-campaigns/faqs/can-businesses-view-payload-exchange-metrics.md).

# Can businesses view payload exchange metrics?

Yes, businesses can access detailed **payload exchange metrics** via the Truecaller for Business console. We provide a breakdown of successfully processed records along with granular reasons for any rejections. 

These are shared asynchronously to ensure clarity and traceability mapped to each unique Campaign ID.

Here are some common rejection reasons:

* **Receiver’s app version is not supported** → Truecaller user is on an unsupported app version
* **Receiver’s OS is not supported** → Truecaller user is using an iOS device
* **Receiver is not a Truecaller user** → The user is not registered on Truecaller
* **Invalid receiver number** → Phone number in the payload is malformed or incorrect
* **Error in SHA-256 encoded format** → Phone number was not provided in valid SHA-256 format
* All **system-side errors** (such as internal timeouts) are grouped under a unified error bucket labeled →\
   **Internal system errors**


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