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The fetchDeltaSince method returns one or more Transaction objects whose status has changed since the specified time stamp. Call this method to programmatically and periodically download Transactions from Vindicia for reconciliation with the payments deposited into your bank account by your payment processor, especially if you use Vindicia Subscribe for recurring billing only. In that case, because Vindicia Subscribe generates and processes all your transactions with your payment processor, you (may) have no records of them. For record-keeping, reporting, or any other purpose, periodically synchronize your database with the Transactions in the Vindicia database by calling this method.

Vindicia recommends that you call this method at regular intervals, and make note of the date and time, so that you can specify that as the time stamp for your next call. The appropriate interval for the calls depends on your transaction volume. If your volume is large, call this method more often to limit the amount of data you receive. You may also further filter and limit the number of transactions returned by specifying a payment method as another search criterion.

The fetchDeltaSince method supports paging to limit the number of records returned per call. Returning a large number of records in one call may swamp buffers and might cause a failure. Vindicia recommends that you call this method in a loop, incrementing the page for each loop iteration with an optimal page size (number of records returned in one call) until the page contains a number of records that is less than the given page size.

You may also download transaction-related reports from the Vindicia Subscribe Portal. See the Vindicia Subscribe User’s Guide for details.


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.

timestamp: a time stamp that specifies the date and time on or after which the Transaction objects have changed status.

endTimestamp: a time stamp that specifies the upper limit of the date and time before which the Transaction objects have changed status.

page: the page number, starting at 0, for which to return the results. For example, if the total number of results is 85 and pageSize is 10:

  • Specifying 0 for page gets the results from 1 through 10.
  • Specifying 2 for page gets the results from 21 through 30.

pageSize: the number of records to display per page per call. This value must be greater than 0.

paymentMethod: a PaymentMethod object, an optional constraint that, if specified, restricts retrieval to only those Transaction objects whose source payment method matches the input. Identify the PaymentMethod with its VID or your payment method ID (merchantPaymentMethodId).


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

transactions: an array of one or more Transaction objects whose status has changed since the specified time stamp but before endTimestamp, if specified, and that use paymentMethod, if specified.


In addition to those listed in Standard Return Codes, this call returns:

Return Code

Return String


One of the following:

• Invalid Arguments - Must specify a valid payment method type, if using that option.

• Must specify a time stamp to find transactions newer than …


Not Found - No match found for the Payment Method.


$soap_tx = new Transaction();
$page = 0;
$pageSize = 50;

// Fetch transactions that have changed in status since the last time
// this call was run. Assume we have a function available to us that
// gives us the time stamp when the last time we ran this call.

$since = getLastCallTime();
do {

// we will not filter returned transactions by end time stamp
// and payment method

$ret = $soap_tx->fetchDeltaSince($since, null, $page,
$pageSize, null);
$count = 0;
if ($ret['returnCode'] == 200) {

$fetchedTxns = $ret['transactions'];
if ($fetchedTxns != null) {

$count = sizeof($fetchedTxns);
foreach ($fetchedTxns as $fetchedTx) {

// process a fetched transaction here …

$status = $fetchedTx->statusLog[0]->status;
$transactionId =
$amount = $fetchedTx->getAmount();



} while ($count > 0);

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