UPDATE 1-SAP aims to double software sales by 2014 -paper

* SAP eyes operating margin of at least 35 pct by 2014 -FTD

* SAP says internal document should not be seen as guidance

* Shares rise 0.6 percent in early trade

(Adds company comment, share price)

FRANKFURT, June 29 (Reuters) - SAP (SAPG.DE), the world's biggest maker of business management software, expects to double software and software-related sales by 2014 and is aiming for an operating margin of at least 35 percent, a newspaper reported.

The Financial Times Deutschland said on Monday, citing company sources, that SAP management had presented its mid-term strategy to 2014 in an internal document.

A spokesman for SAP said: "This is not a guidance." It was an internal strategy document that was still being discussed, he added.

SAP shares rose 0.6 percent to 28.34 euro at 0702 GMT, outperforming a 0.2 percent drop in the German blue-chip DAX index .GDAXI.

SAP has not given a target for software and software-related sales this year, but has said it expected to reach a 2009 operating margin, excluding one-off items, of between 24.5 and 25.5 percent at constant currencies.

It has based its margin forecasts on the assumption that core sales would be flat or 1 percent lower than the 2008 figure of 8.6 billion euros. [ID:nLS722275]

(Reporting by Eva Kuehnen, Editing by Michael Shields)