The latest Royal Bank of Scotland purchasing managers index (PMI) survey has marked the end of a six-month period of growth.
The survey reported no change in business activity across the Scottish private sector midway through the third quarter.
The headline Scotland Business Activity Index slipped to 50.0 in August from 51.1 in July.
New orders fell for the second consecutive month and at an accelerated pace as service providers joined their manufacturing counterparts in the downturn.
Meanwhile, private sector companies still registered historically sharp increases in their cost burdens — and as a result, charges for goods and services were also raised sharply.
Business confidence slipped to an eight-month low.
“Following the broad stagnation in new business across Scottish private sector firms in July, August data revealed a modest contraction,” said the report.
“Service providers posted the first decline in seven months, while manufacturing new orders fell for the fifth month running and at a marked pace.
“According to anecdotal evidence, the latest fall in new business was attributed to inflation, economic uncertainty and the cost of living all having pressed demand.
“The rate of reduction in new orders across Scotland was largely in line with that recorded at the UK level.”
Despite this, the August data revealed a seventh monthly expansion in employment across Scotland.
The rate of job creation quickened after easing to a six-month low in July.
Moreover, the rate of expansion in payroll numbers across Scotland was stronger than the UK-wide average.
“Private sector firms across Scotland continued to predict growth in activity in the coming 12 months during August,” added the report.
“Hopes of improved demand conditions and customer growth, as well as increased marketing fed into greater expectations.
“However, the degree of confidence ticked down to an eight-month low in August as the current economic climate, inflation and scarcity of suitable candidates resulted to historically subdued confidence levels.
“Scottish firms held the third-weakest outlook in the UK, ahead of the North East and Northern Ireland.”
Judith Cruickshank, Chair, Scotland Board, Royal Bank of Scotland, said: “The latest PMI data for Scotland pointed to emerging weakness in the Scottish private sector, with firms signalling no change in private sector output and new orders contracting modestly amid reports of economic uncertainty and falling demand.
“Declining business requirements could result in a reduction in output unless the demand picture improves.
“Moreover, higher material, labour and energy costs meant that firms continued to struggle with rising cost burdens.
“In turn, companies raised their charges for the provision of goods and services.
“Lastly, business confidence around the year-ahead outlook remained historically subdued and weakened to an eight-month low, as frail demand conditions, higher interest rates and inflation all weighed on expectations.”