# JPMC-PDP Documentation from https://developer.payments.jpmorgan.com

# Parameters

This page provides information about the required and optional parameters for check image requests. To help achieve a successful request, all required fields must be included. Optional fields offer additional functionality but are not required to initiate a request.

## Required

The following table includes the required parameters to initiate a successful request:

 
**Required**

| Field | Description | Minimum | Maximum | Notes | 
| --- | --- | --- | --- | --- | 
| accountNumber | The account number associated with the check. | 2 | 17 |  | 
| financialInstitution.id | The identifier for the bank or financial institution. | 1 | 11 | Example: - ABA - BIC | 
| financialInstitution.idType | Specifies the type of financial institution identifier. |  |  | Allowed values are: - USABA - BIC - SORT_CODE - CLEARING_SYSTEM_ID | 
| checkRange.start | The starting check number for a range search. This value is inclusive. | 1 | 10 | - Supports range filtering. | 
| checkRange.end | The ending check number for a range search. This value is inclusive. | 1 | 10 | - Supports range filtering. | 
| checkNumbers | One or more specific check numbers to search for. Multiple check numbers can be provided. | 1 | 10 | - 1 to 5 items allowed. | 

## Optional fields

The following table includes optional parameters that can be used to customize the request:

 
**Optional**

| Field | Description | Minimum | Maximum | Notes | 
| --- | --- | --- | --- | --- | 
| branchNumber | The branch of the bank or financial institution associated with the check. |  |  |  | 
| checkSeqNumber | A unique identifier for a specific check. |  |  | - Only numeric values are allowed. | 
| issueDateGte | Filters for checks with an issue date greater than or equal to the specified date. | 10 | 10 | - Defaults to searching the past 90 days if not specified. - The date must be within one year of the issueDateLte value. - Format: ISO-8601 date. | 
| issueDateLte | Filters for checks with an issue date less than or equal to the specified date. | 10 | 10 | - The date must be within one year of the issueDateGte value. - Format: ISO-8601 | 
| postedDateGte | Represents a greater-or-equal match to support range style filtering on posted date. | 10 | 10 | - The date must be within one year of the postedDateLte value. - Format: ISO-8601. | 
| postedDateLte | Filters for checks with a posted date less than or equal to the specified date. | 10 | 10 | - The date must be within one year of the postedDateLte value. - Format: ISO-8601. | 
| amountLte | Filters for checks with an amount less than or equal to the specified value. | 1 | 18 |  | 
| amountGte | Filters for checks with an amount greater than or equal to the specified value. | 1 | 18 |  | 
| imageFormat | Specifies the format of the returned check image. |  |  | - Default: PNG - Allowed values: - TIFF - PNG - JPEG | 
| limit | Sets the maximum number of results to return. Used for pagination. Default is 5, for a range search. | 1 | 10 | - Default: 5 | 
| offset | Indicates the page number for pagination. This is a zero-based value. Use 0 for the first page, then increment by 1 for subsequent pages. Do not alter other parameters during pagination. |  |  | - Default: 0 | 

## Next steps

Review available [resources](/docs/treasury/checks/capabilities/check-image/resources) for check imaging.