> ## Documentation Index
> Fetch the complete documentation index at: https://docs.slm.m1amdocs.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Account.extendEntitlementByInterval

The `extendEntitlementByInterval` method extends an `Account` entitlement by the interval provided.

(The entitlement must already exist and be on the `Account` when this method is called.)

## Input

*srd*: sparse response description, a SOAP string (which must be a JSON object), in which you specify the elements you want returned.This parameter enables the calling system to constrain a `method` call to return only components you specify. This gives you greater control over returned content, and improves response time within the Vindicia platform by reducing the processing needed for the call.

Some fields are required, either practically or in the WSDL, and will be returned regardless of the *srd*. A null *srd* returns the complete response.

*account*: the `Account` to which this extension applies.

*entitlement*: an object of type `Entitlement` for the given `Account`.

*merchantEntitlementId*: the merchant's unique ID for this entitlement. This may be specified in lieu of the full Entitlement object. Note that either the Entitlement or the `merchantEntitlementId` must be specified.

*interval*: the extension interval to be applied to entitlement.

*note*: an optional memo regarding the entitlement extension.

## Output

*return*: an object of type `Return` that indicates the success or failure of the call.

*account*: the `Account` object with modified entitlements.

## Returns

In addition to those listed in [The Return Object](The_Return_Object), this call returns:

| Return Code | Return String |
| - | - |
| `400` | One of the following: - `Entitlement not specified.` - `Base Account not specified.` - `Extension interval not specified.` - `Account not found.` - `Entitlement not found.` - `Entitlement extension failed: *error-description*.` - `Failed to save Account after entitlement extension: *error-description*.` - `Failed to reload account after entitlement extension: *error-description*.` |

## Example

```

// to extend entitlements by 2 days

$acct = new Account();
$acct->setMerchantAccountId('xyz123');

$interval = new TimeInterval();
$interval->setType('Day');
$interval->setAmount(2);

$entitle = new Entitlement();
$entitle->setDescription('For playing Scrabble');
$entitle->setStartTimestamp($today);
$entitle->setEndTimestamp($tomorrow);
$entitle->setMerchantEntitlementId('bac');

$acct->grantEntitlement($entitle);

$response = $acct->extendEntitlementByInterval(
   $entitle,
   null,
   $interval,
   'Extended by 2 days'
);

// check $response ...
```

**Parent topic:**[Account Methods](../topics/Account_Methods)


This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.