> For the complete documentation index, see [llms.txt](https://docs.mdintegrations.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.mdintegrations.com/help-center/account-and-credentials/authentication-and-credential-issues.md).

# Authentication & Credential Issues

Use these answers to resolve common authentication and credential issues.

<details>

<summary>I am getting <code>Client credentials must be provided...</code></summary>

The credential format is missing or malformed.

Provide your Client ID and Secret in either the JSON request body or a Basic Authorization header. Choose one method and use it consistently.

</details>

<details>

<summary>I am getting <code>Client authentication failed.</code></summary>

The Client ID or Secret is not recognized. Verify both values in the **API** tab of the **Tech** page.

The secret appears only once, when the credential is created.

</details>

<details>

<summary>My token stopped working after about 30 minutes</summary>

This is expected. Tokens are short-lived and do not support a refresh grant.

Request a new token after the current token expires.

</details>

<details>

<summary>I am authenticated, but reach Sandbox instead of Live</summary>

Each credential is permanently assigned to its environment at creation. You cannot switch its environment later.

Create a credential in the environment you need.

</details>

<details>

<summary>I closed the window and cannot find my API secret</summary>

This is expected. The secret appears only once, when the credential is created.

Create a new credential to generate a new secret.

</details>

<details>

<summary>My integration stopped working after I removed a credential</summary>

Removing a credential takes effect immediately.

Deploy the replacement credential to your integration before removing the existing credential.

</details>

<details>

<summary>I cannot save a pharmacy connection</summary>

Verify that every required secret field for the pharmacy has a value.

Saving remains blocked until all required fields are complete.

</details>

<details>

<summary>I need to change my Stripe secret key</summary>

Saved Stripe secret keys are masked and cannot be edited directly.

Remove the Stripe account, then add it again with the new key.

</details>

<details>

<summary>Can I pause a credential instead of deleting it?</summary>

No. Credentials cannot be disabled or regenerated.

Create a replacement credential before deleting the current one.

</details>


---

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